Question

【题目】Lots of people exercise every morming_________bad weather stops them.

A. if B. unless C. until D. since

Answer 1

【答案】B

【解析】考查连词词义辨析。A. if“如果”；B. unless“除非；如果不”；C. until“直到”；D. since“自从；既然”。句意：很多人每天早晨锻炼 _______ 恶劣的天气阻拦他们。结合选项的意思和句意可知，用unless。故选B。